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自定义mybatis拦截器，在springboot项目中不起作用的解决方法

自定义mybatis拦截器，在若依springboot项目中不起作用的原因

找到 MyBatisConfig 配置类，引入自定义配置

在sqlSessionFactory中添加自定义拦截器，就可以正常使用了

package com.lingxu.framework.config;import com.lingxu.common.core.domain.model.LoginUser;
import com.lingxu.common.utils.SecurityUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.binding.MapperMethod.ParamMap;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.SqlCommandType;
import org.apache.ibatis.plugin.*;
import org.springframework.stereotype.Component;import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.List;/*** mybatis拦截器，自动注入创建人、创建时间、修改人、修改时间* @Author scott* @Date  2019-01-19**/
@Slf4j
@Component
@Intercepts({ @Signature(type = Executor.class, method = "update", args = { MappedStatement.class, Object.class }) })
public class MybatisInterceptor implements Interceptor {@Overridepublic Object intercept(Invocation invocation) throws Throwable {MappedStatement mappedStatement = (MappedStatement) invocation.getArgs()[0];String sqlId = mappedStatement.getId();log.debug("------sqlId------" + sqlId);SqlCommandType sqlCommandType = mappedStatement.getSqlCommandType();Object parameter = invocation.getArgs()[1];log.debug("------sqlCommandType------" + sqlCommandType);if (parameter == null) {return invocation.proceed();}if (SqlCommandType.INSERT == sqlCommandType) {LoginUser sysUser = this.getLoginUser();Field[] fields = this.getAllFields(parameter);assert fields != null;for (Field field : fields) {log.debug("------field.name------" + field.getName());try {if ("createBy".equals(field.getName())) {field.setAccessible(true);Object local_createBy = field.get(parameter);field.setAccessible(false);if (local_createBy == null || local_createBy.equals("")) {if (sysUser != null) {// 登录人账号field.setAccessible(true);field.set(parameter, sysUser.getUserId());field.setAccessible(false);}}}if ("createName".equals(field.getName())) {field.setAccessible(true);Object local_createBy = field.get(parameter);field.setAccessible(false);if (local_createBy == null || local_createBy.equals("")) {if (sysUser != null) {// 登录人账号field.setAccessible(true);field.set(parameter, sysUser.getUser().getNickName());field.setAccessible(false);}}}// 注入创建时间if ("createTime".equals(field.getName())) {field.setAccessible(true);Object local_createDate = field.get(parameter);field.setAccessible(false);if (local_createDate == null || local_createDate.equals("")) {field.setAccessible(true);field.set(parameter, new Date());field.setAccessible(false);}}} catch (Exception e) {}}}if (SqlCommandType.UPDATE == sqlCommandType) {LoginUser sysUser = this.getLoginUser();Field[] fields = null;if (parameter instanceof ParamMap) {ParamMap<?> p = (ParamMap<?>) parameter;//update-begin-author:scott date:20190729 for:批量更新报错issues/IZA3Q--if (p.containsKey("et")) {parameter = p.get("et");} else {parameter = p.get("param1");}//update-end-author:scott date:20190729 for:批量更新报错issues/IZA3Q-//update-begin-author:scott date:20190729 for:更新指定字段时报错 issues/#516-if (parameter == null) {return invocation.proceed();}//update-end-author:scott date:20190729 for:更新指定字段时报错 issues/#516-fields = this.getAllFields(parameter);} else {fields = this.getAllFields(parameter);}for (Field field : fields) {field.setAccessible(true);log.debug("------field.name------" + field.getName());try {if ("updateBy".equals(field.getName())) {//获取登录用户信息if (sysUser != null) {// 登录账号field.set(parameter, sysUser.getUserId());field.setAccessible(false);}}if ("updateTime".equals(field.getName())) {field.set(parameter, new Date());field.setAccessible(false);}} catch (Exception e) {e.printStackTrace();}}}return invocation.proceed();}@Overridepublic Object plugin(Object target) {return Plugin.wrap(target, this);}private LoginUser getLoginUser() {LoginUser userNow = null;try {
//			try catch避免线程任务出错userNow = SecurityUtils.getLoginUser() != null ? SecurityUtils.getLoginUser() : null;} catch (Exception e) {//e.printStackTrace();}return userNow;}/*** 获取类的所有属性，包括父类** @param object* @return*/public Field[] getAllFields(Object object) {Class<?> clazz = object.getClass();if(clazz==null){return  null;}List<Field> fieldList = new ArrayList<>();while (clazz != null) {fieldList.addAll(new ArrayList<>(Arrays.asList(clazz.getDeclaredFields())));clazz = clazz.getSuperclass();}Field[] fields = new Field[fieldList.size()];fieldList.toArray(fields);return fields;}}